- Definitions|1
- Thesaurus|1.1k
- Abbreviations|0
| plucky(adjective, resolute) | |
| repeated(adjective, continuous) | |
| restricted(adjective, certain, limited, definite, inflexible) | |
| rooted(adjective, secure, certain, steady, limited) | |
| ruthless(adjective, resolute) | |
| secure(adjective, calm, strong, firm, solid) | |
| serious(adjective, resolute, terminal, incurable, irreversible) | |
| severe(adjective, rigid) | |
| single-minded(adjective, set, hard, firm, solid) | |
| spunky(adjective, resolute) | |
| standard | |
| stationary(calm, strong, solid, steady, substantial) | |
| straight(adjective, continuous) | |
| strong-willed(adjective, resolute) | |
| thorough(adjective, resolute) | |
| tireless(adjective, resolute) | |
| trustworthy | |
| unadaptable(adjective, set, hard, stiff, rigid) | |
| undying(adjective, continuous) | |
| unfading(fixed, static) |
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| APA | Smart Define. (2015). unchangeable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unchangeable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unchangeable thesaurus" https://smartdefine.org/unchangeable/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, unchangeable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unchangeable/thesaurus/synonyms>. |
| MLA | Smart Define. "unchangeable thesaurus" 3 August 2015. Web. 23 September 2026. <https://smartdefine.org/unchangeable/thesaurus/synonyms> |